I have the same issue using Brave when browsing normal websites (not IPFS sites) with the IPFS Companion extension enabled. I find I have to keep the extension disabled most of the time unless I really need to browse IPFS. The issue is intermittent, where sometimes browsing will be fine and other times loading a webpage will get stuck for several seconds or longer. I think the browser dev tools says it gets stuck in queuing IIRC.
It sounds just like these others posts/issues although I think some people are missing the fact that the issue occurs when browsing non-IPFS sites:
opened 08:20AM - 13 Sep 21 UTC
status/blocked
need/analysis
I'm using Brave browser currently. I'm not sure, if this is issue with Brave or … IPFS, but I will write here about it. Brave support IPFS out of the box. But there is also an option to install IPFS companion extension right in Brave settings, which I did. I should notice, that desktop IPFS node is not installed. When using Brave, companion works in the background somehow even when you're not using any IPFS resources at the moment, which is ok. But sometimes, when you trying to load regular (non IPFS) site it takes several seconds more (like 8 seconds) than expected. When companion is off, it doesn't happen. I have looked at developers tools. It's seems to me, that problem lies in Queueing phase which described here:
https://developer.chrome.com/docs/devtools/network/reference/#timing-explanation
As I said, sometimes it takes several seconds.
No, I mean that the slowness happens because of the router, not because of anything happening on the machine itself. For example, if the router cannot handle a bunch of UDP connections related to IPFS, things like DNS might stop working because it also uses udp and then pages hang.
So I have noticed this weird thing where IPFS websites are really slow if I have local IPFS node running. Happens on windows as well as Mac OS.
I have tried with various websites running on IPFS. It’s like it is loading the whole thing before even showing me the home page. It is not a problem with the systems. The same websites if opened in an incognito tab open really fast. That makes the whole thing seem really weird if someone tries to have local IPFS locally hoping it will make things faste…